/*
* Copyright (c) 2012 Kyle Hayward
* 
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "Precompiled.h"

#include "TextureSampler.h"
#include "Context.h"
#include "Buffer.h"

namespace OptixDotNet 
{
	
	TextureSampler::TextureSampler( Context^ context ) : DataNode( context )
	{
		mSampler = 0;
	}

	TextureSampler::TextureSampler( Context^ context, TextureSamplerDesc desc ) : DataNode( context )
	{
		mSampler = 0;

		pin_ptr<RTtexturesampler> ptr = &mSampler;
		CheckError( rtTextureSamplerCreate( context->InternalPtr(), ptr ) );
		
		SetDesc( desc );
	}	

	void TextureSampler::SetDesc( TextureSamplerDesc% desc )
	{
		CheckError( rtTextureSamplerSetWrapMode( mSampler, 0, (RTwrapmode)desc.Wrap.WrapU ) );
		CheckError( rtTextureSamplerSetWrapMode( mSampler, 1, (RTwrapmode)desc.Wrap.WrapV ) );
		CheckError( rtTextureSamplerSetWrapMode( mSampler, 2, (RTwrapmode)desc.Wrap.WrapW ) );

		CheckError( rtTextureSamplerSetFilteringModes( mSampler, (RTfiltermode)desc.Filter.Min, (RTfiltermode)desc.Filter.Mag, (RTfiltermode)desc.Filter.Mip ) );

		CheckError( rtTextureSamplerSetReadMode( mSampler, (RTtexturereadmode)desc.Read ) );
		CheckError( rtTextureSamplerSetIndexingMode( mSampler, (RTtextureindexmode)desc.Index ) );

		CheckError( rtTextureSamplerSetMipLevelCount( mSampler, desc.MipLevels ) );
		CheckError( rtTextureSamplerSetMaxAnisotropy( mSampler, desc.MaxAnisotropy ) );
		
		CheckError( rtTextureSamplerSetArraySize( mSampler, 1 ) );
	}

	void TextureSampler::SetBuffer( Buffer^ buffer,unsigned int mipLevel )
	{
		CheckError( rtTextureSamplerSetBuffer( mSampler, 0u, mipLevel, buffer->InternalPtr() ) );
	}
}